Sinead O’Connor’s bizarre antics seem to only have helped her career. The singer — who married Barry Herridge in a quickie Vegas ceremony in December, then split with him and got back with him all within a few weeks — had to move two gigs this week to larger venues. O’Connor was to play the Masonic Lodge at Hollywood Forever cemetery, which holds fewer than 300 people, last night and Monday. But high demand moved the shows to the El Rey Theatre, which holds 700. Her latest album, “How About I Be Me (And You Be You)?” is getting raves and was called “brave and bonkers” by UK music mag Uncut. She plays the Highline Ballroom here tomorrow and Friday.